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Is my picture tube going?

My picture on my mitsubishi vs-5042 projection tv keeps cutting out after about 2 -3 hours of viewing. If I turn it off for an hour or so, it will come back on and last about 2 hours. Is the picture tube going or is a circuit overheating?

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Most proj TV's of that type have 3 Picture tubes Red, Green and Blue. It's not likely that all 3 went bad at the same time in the same manner. So I believe you have a circuit problem, probably in the power supply stages, possibly a bad solder joint.

Hope that helps...


Posted on Mar 26, 2008


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